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Finding the Fourth Proportional to 11,469.69, 15,829.95 and 6,435.95

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Solution

The fourth proportional to 11,469.69, 15,829.95 and 6,435.95 is: 8,882.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,469.69 : 15,829.95 = 6,435.95 : x
  2. Step 2: Convert to fraction form
    11,469.69/15,829.95 = 6,435.95/x
  3. Step 3: Cross multiply
    11,469.69x = 15,829.95 × 6,435.95
  4. Step 4: Simplify right side
    11,469.69x = 101,880,655.37
  5. Step 5: Solve for x
    x = 101,880,655.37/11,469.69
  6. Step 6: Final answer
    x = 8,882.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.